Comment by tored

Nice write up.

Mail.app is what I call the new "modern" app shipped with Windows 10. Mostly garbage. Spends most of its time and your CPU to resynchronize your mails.

My experience with these programs is that the predecessor can have feature X but the successor doesn’t but has feature Y, similar what OP described.

I’m always harsh when reviewing software. No need to be gentle about things that doesn’t work well.